Update tailwind

[nojaf]

• Update Vite to v6
• Update Tailwind to v4 (removed autoprefix and postcss in the process)
• Change the counter example to match the Vite + React sample a bit better.

[nojaf]

For reference:

[fhammerschmidt]

As usual: Does fast refresh still work?

[nojaf]

As usual: Does fast refresh still work?

Yup!

[fhammerschmidt]

Good.

Ad the template name: Technically it would be a Vite + React + ReScript template.

And I don't just want to be pedantic here, but what if we have someday a React-less template that just uses the new webapi?

[nojaf]

Ad the template name: Technically it would be a Vite + React + ReScript template.

That is true, although I would cross that bridge when we create a second template.
(If there even is a demand for that)

I can update it though, if you feel strongly about it.

[fhammerschmidt]

Nah.

But I also requested a review from @cknitt
(btw. this repo still uses buildjet)

[cknitt]

Awesome! Thanks a lot!